about prototype's clone method

Hi, this is the code in the prototype pattern.And I wonder why this clone() method creates a new object rather than clone itself? Thanks.

> 
public class OrcBeast extends Beast {

  public OrcBeast() {}

  @Override
  public Beast clone() throws CloneNotSupportedException {
    return new OrcBeast();
  }

  @Override
  public String toString() {
    return "Orcish wolf";
  }

}